func (f *FetcherEnumerator) Add(b *blob.Blob) {
if *cacheSizeMB <= 0 {
return
}
f.cached += int64(b.Size())
if f.cached >= int64(*cacheSizeMB)*512*1024 {
f.cached = 0
f.c2 = f.c1
f.c1 = make(map[string]*blob.Blob)
}
f.c1[b.Ref().Digest()] = b
}
func verifySizeAndHash(t *testing.T, blob *blob.Blob) {
hash := sha1.New()
r := blob.Open()
n, err := io.Copy(hash, r)
if err != nil {
t.Fatal(err)
}
r.Close()
if uint32(n) != blob.Size() {
t.Fatalf("read %d bytes from blob %v; want %v", n, blob.Ref(), blob.Size())
}
if !blob.SizedRef().HashMatches(hash) {
t.Fatalf("read wrong bytes from blobref %v (digest mismatch)", blob.Ref())
}
}